APA (7e ed.) Bronvermelding

Doyle, A. C., & Page, J. (2010). Sherlock Holmes: The sign of four. Oxford University Press.

Chicago (17e ed.) Bronvermelding

Doyle, Arthur Conan, en Jeremy Page. Sherlock Holmes: The Sign of Four. Oxford: Oxford University Press, 2010.

MLA (8e ed.) Bronvermelding

Doyle, Arthur Conan, en Jeremy Page. Sherlock Holmes: The Sign of Four. Oxford University Press, 2010.